Talking machine



March 8,1927. 41,620,25 7

K. HOLTZ Y TALKING MACHINE Filed March Il0. 1924 .XJ A i v 9- 10g. plus Patented Mar. 8, 1927.

UNITED STATES PATENT oFFlcE.

KARL ,'I-IOLTZ, OF BERLIN', GERMANY, ASSIGNOR TO CARL LINDSTBM AKTIEN- GESELLSCHAFT, OF BERLIN, GERMANY.

TALKING Application led March 10, 1924, SeriallNo. 698,204, and in Germany August 17, 1923.

The invention relates to a talking machine of the portable type andto this end is constructed in the smallest possible dimension- 4without loss of tone quality and loudness-.f

and of minimum weight so that the same may be easily carried about. The lid, by the novel arrangement hereafter described in detail, serves the triple purpose to act as a cover for the talking machine, as a con- 10 tainer for the storage of records and as an amplifying horn. This advantage is gained by the subdivision of thelid into one or more compartments formed by foldable or hinged walls'by means of which one. or more combined sound-amplifying-compartments and record-containing-compartments are effected. These dividing walls may be constructed with side leaves closing the narrow sides o-f the compartment to form a completely enclosed amplifying chamber.

In giving a detailed description of the construction reference is had to the accompanying drawings of which Figure 1 shows a front elevation, the 'lid (4) in raised position ready for use, showing the complete apparatus enclosing turntable, tone arm and sound box.

Figure 2 shows a vetrical section of a side elevation through -line --m of Figure 1.

Figure 3 shows a vertical Section through a side elevation as in Figure 2 the machine dismounted for transportation, the lid closed and containing a number of records in the storage compartment.

(4) are of equal heights. The body of the box (1) contains the very compact spring motor (2) enclosed `in such a way by suitable walls (3) so as to leave a' number of small open spac`s in the box which serve as containers for parts of the machine, such as windingcrank, tone arm and sound box and other accessories which are placed conveniently in such compartments while the ifsfapparatus iscarried about, or as storagefor the accessoriesjwh'en the apparatus is not in Lid LS4) is connected by a hinge (5) with the bo y of the box (1). 'It may be constructed solid, so that all four sides are in fixed relation-to the top leaf of the lid or the sides 11, 12 and 13 may be hinged or in any other way'movably or removably con- In the preferred form, lbox (1) and lid nected to the top leaf. The inside centre of the top is provided with -a stud (6) over 55 vwhich the records to be stored are arranged.y The inner side of the lid (4) is connected by means of a hinge (22) or in any other suitable way to a leaf (7). Said leaf (7) is connected furthermore tothe body portion 1) of the apparatus by means of a 11d support (8) which maintains the leaf in correct. relative' position to the latter so that its best possible position for the proper reproduction of sound may be safeguarded whenever the apparatus is in use. The lower part of leaf (7 is provided with an aperture which carries a suitable socket (15) for the universal joint of the tone arm (16) whereas the upper part of the leaf 7 is. connected 70 to the main part of the lid` 4 b `means of suitable stay's'or hinges (9). ride leaves (10) closing the wedgeeshaped tone chamber may be either hingedly connected or inserted into grooves provided in the top 1) 75 and leaf (7) or may be fastened to these parts in any other suitable manner. 1 The operation of the apparatus is as fol-4 ows: L

After the lid (4) is opened and the leaf 80 (7) in the position provided for by means of the joint (8), the upper part of 7 is connected to 4 by' means of the stays (9), the records' (14) which may be contained over stud (6l are taken out and eventually the\sides (10 85 are mounted, the tone arm is inserted by means of two pivots (18 and 19) which register with a groove (20) in the ball and socket yjoint (15), the sound box (17) is con, nected to the outer end of the tone arm (16) 90' and the apparatus is ready for use. After use the sides (10) are either dismantled or folded into the apparatus the compartment which while in use served as an amplifying horn becomes again the storage vfor-1a..' number of records. It is closedby means of leaf (7) now forming 'the cover for the record container; sound box, winding crank and tone arm as well as needle container are placed in their respective spaces. The lid is 109 closed and the apparatus ready again to be carried around. J Above description shows only one form of my invention which may be changed in many detailswithout ldeparting from the 105 general spirit of same, whereas the invention.

`5 ica is:

, 1. In a talking machine, the combination with a base containing a turn table and driving means therefor, of a cover member hinged to the base and comprising a top and sides, a Wall movably connected to one of said sides of the cover at the margin thereof, providing the closure of a chamber in the cover member for the reception of records and' formed with an opening to receive a l5 connecting member for the tone arm of the machine, and a. plurality of substantially triangular Walls hinged tothecover member for movement into position transversely thereof to cooperate with the first namedwall and the cover member for converting it into a sound amplifier.

2. In a talking machine, the combination with a relatively shallow base member having a bottom panel and sides and containing a turn table and driving means therefor, of a cover member hinged to the base and Comprising a top and sides, the sides being approximately of the same depth as the sides of the base, a Wall hinged to one side of the cover member at the margin thereof, means carried by said wall for supporting the tone arm of `the machine, and two substantially triangular Walls hinged to the cover member for movement 'into position to cooperate therewith to convert the cover member into a sound amplifier.

In testimony whereof, I affix my signature.

KARL IIOLTZ. 

